Ments



C. E. LUCKE.

COKE OVEN.

APPLICATION FILED AUG-30, X917- RENEWED 1406.13 1920.

1,371,31 5. Patented Mar. 15, 1921.

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36 ms W3 C. E. LUCKE.

COKE OVEN.

APPLICATION FILED AUG.30, 1917. RENEWED AUG. 13, 1920.

UNITED STATES PATENT OFF-ICE."

" CHARLES E. LUCKE, or NEW 31031;, N. Y., nssrsnon, a? manor AND MESNEASSIGN- MENTS, OF ONE-THIRD TO LOUIS WILPUT'IE AND 'E'EJVO-TEIRDS TO ALICE A. WIL- PUTTE, BOTH or vnw ROCHELLE,

NEW YORK.

coxn-ovniv.

T 0 all whom it may concern:

Be it known that I, CHAnLns E. LUoKn, a citizen of the United States of America, residing in the city, county, and State of New York, have invented certain new and useful Improvements in Coke- Ovens, of which the following is a true andexact description, reference being had to the accompanying drawings, which form a part thereof.

My present invention relates to regenerative coke ovens and particularly to regenerative coke ovens of the type disclosed in V the prior Patent, No. 1,212,866, granted January 16, 1917 to Louis Wilputte, and consists in a novel arrangement of the outlet connections from the regenerative chambers,- devised with the general object of entirely segregating the waste gas outlets from the different regenerators and thereby obtaining amore perfect control of the distribution of flow among the various oven heating flues.

The various features of novelty which characterize my invention arepointed out with particularity in the claims annexed hereto and forming a part of this specification. For a better understanding of the invention, however, and of the advantages possessed by it, reference should be had to the accompanying drawings and descriptive matter, in which I have illustrated and described various forms of apparatus embodying the invention and by which each may be carried out. I a 7 Of the drawings:

Figure 1 is a sectional elevation of a coke oven, the section being taken on the line 1-1ofFig.3; a .Fig. 2 is a section on the hue 22 of Fig. 1, and

Fig. 3 is a section taken partly on the line" 33 and partly on the line 3 3 of Fig. 1.

the drawings represents parallel,

horizontally elongated coking chambers "formed in the coke oven structure. The

walls separating thechambers A are made hollow, as usual, to provide heating chambers which are divided up into a series of vertical heating fiues B by the partitions C and CC, and open at their upper ends into the usual common horizontal fiues D. ,E represents slide dampers mounted on the tops tions I, however, so that the Specification of Lettcrs Patent. Patented Mar. 15,. 192 1. Application filed August so, 1917, Serial No. 188,913.

Renewed August 18, 1920. Serial No; 403,300.

the adjustment of the slides E, as well as of the gas burner nozzles hereinafter referred to. The passages F are normally closed at their upper ends. In the lower portion of the coke oven structure are located alternately arranged regenerator chambers Gr and GA, which run transversely to the length of the heating chambers and are separated from one another by the transverse partition walls H. In order to obtain the desired structural strength, wall portions I extend across the regenerative spaces between the division walls H and beneath the heating wall between the chambers A. Large ports or passages I are formed in the wall porlatter do not interfere with the practical continuity of the v transversely running regenerative chambers. I The checker brick is advantageously disposed in the passages I" as wellas in the spaces between the walls 1. Each flue B is connected at the bottom, in the particular form shown in the drawings, with one regenerative chamber G and with 'one. regenerative chamber GA, by a corresponding pair of passages g, and each of the regenerative chambers G and GA is connected by two passages g to two different fiues B for a reason hereinafter explained. Gas burner pipes J are located in passages formed in the oven structure beneath the fines B and supply gas through the ported nipples J. and burner nozzlesK into burner chambers K one into the bottom of each flue B.

The supply connectionto the regenerative chambers G and GA comprise a series of alternately arranged pipes M and MA at each side of thebattery. Each of the pipes M and MA is located in a corresponding passage L formed in the lower portion of the masonry structure and. as-shown, in line -with the portions I. Each of the pipes M opening while the discharge orifices M of each pipe MA register with another set of vertical passages L? opening from the corresponding passage L into the regenerative chambers GA above,- as is shown clearly in Fig. 2.

' The burner pipes J are arranged in alined pairs extending into the oven structure or battery from its opposite sides, and the same is true of the supply pipes M and the supply pipes MA erably removably mounted in place so that they may be withdrawn for cleaning, removal, or to permit the orifices M to be adjusted, which may easily be done in some cases by reaming out the orifices and in other cases by replacing the withdrawn pipe by a new one in which the orifices are ofthe proper size.

Each of the supply pipes M and MA at one side of the oven structure is connected to. the corresponding one of a pair of tunnels or flues Q running along the opposite sides of the battery. In the connection shown each of the pipes M is connected to the corresponding flue Q by a simple elbow and pipe section M and eachof the pipes MA is connected to the corresponding flue Q by a pipe connection M including a cutoff valve M. In addition each of the pipes MA is connected to the corresponding one of a pair of as supply mains R by a pipe connection M including a reversing valve M flhaving an operating arm 1 Each burner pipe J is also connected to the corresponding gas main R by a pipe connection J includinv a cutoff valve J and a reversing valve 3. Each reversing valve J is provided with an operating arm J and the various operating arms J and M are in practice connected to a suitable re- 7 versing mechanism.

The regenerative chambers G and GA are connected by a series of ports P formed in the bottoinwalls of these chambers each to a corresponding one of a series of waste gas sole channels N. The channels N extend transversely to the oven chamber A and in the preferred construction illustrated each lies immediatel beneath the regenerator chamber G or A. to which it is connected b the corresponding ports P.

' Each of the sole channels N is connected through an undivided valve casing U to an offtake fiueQA', which runs along one end of the battery and leads to a suitable stack (not shown). Each valve casing U isprovided with an adjustable throttling damper U and with a cutoff valve U which may be 7 moved toward and away'from its seat by a corresponding valve operating arm U con nected to reversing mechanism which may be of the usual character.

The particular oven construction described is adapted for operation in two different ways. In one contemplated mode of opera- The pipes M and MA are preftion the oven is commonly described as operating as a coke oven, and in this case the combustlble gas supplied for heating the oven is as enerated in the chambers A which after being purified and cooled is supplied to the appropriate burner pipes J through the corresponding one of the two gas mains lit. In this case the valves 1V 12 in the pipe connections M are all open, the reversing valves M in the pipe connections M are all closed, and the regenerative chambers G and GA are all employed to preheat air supplied to the lower ends of the fiues B. During each period of operation as a coke oven in which combustion begins, for example, in the fines B at the left hand side of the battery as seen in Fig. 3 the left hand flue Q is supplied with air preferably under pressure slightly above that of the atmosphere and passes the air thus received to all of the regenerative spaces G and GAnnder the left hand side of the oven through the pipe connections M and M and the supply pipes M and MA. Atthe same time all of the gas valves J at the left hand side of the battery are open and combustible gas is supplied to the corresponding burner pipes J through the left hand gas-main Efrem the coke oven gas supply connection. The air supply to the flue Q- at the. right hand side of the battery is at this time cut off. In this condition of operation the valves disks U in all the valve casings U connected to the sole channels N under the left hand side of the battery are seated, while all the valve disks U in the valve casings U connected to the sole channels under the right hand side of the battery are open. Operating in this manner the air supporting combustion is preheated as it passes up at the left hand side of the oven to the fines B in which combustion is to begin, while the burnt gases descend through all of the regenerative chambers under the righthand side of the oven and heat up the checker work in the vlatter. After operating with this direction of flow for the prescribed period, which is usually about thirty minutes, the direction of flow through the various regenerative spaces and heating fines is reversed by closing the gas valves J at the left hand side of the battery, and opening the corresponding; valves llO connecting the left hand flue Q from the source of air supply while connecting to the latter the right hand fine (,2.

In the secondcontemplated mode of op eration the oven is commonly said to operate as a gas oven, and in this case the combustible gas supplied for heating the oven is producer or like gas, which is preheated before passing to the combustion flues. B by being assed through the regenerative cham-' bers In this case the valves in the pipe connect ons J are adjusted to close said connect10ns, the reversing valves M in the pipe connections M atone side of the battery are open, and the valves M at the other side ofthe battery are closed the stop valves bustion starting in the flues B at the left hand side of the battery, airis supplied to the left hand regenerative chambers Gr through the pipes M fromthe corresponding flue Q' as w en the oven is operating as a coke oven. At the Sametime combustible gas passes from the left hand gas main R through the .corresponding valves M which are'then open, the left hand pipes MA and thence to ;the left hand regenerator chambers GA and is preheated in the latter.

In this mode and stage of operation, the burnt'gases descend through and reheat the regeneratorchambers G and GA under the right end'half of the oven structure. The right hand valves U being thenclosed and the left hand valves U being then open.

i When the direction of the flow through the combustion flues is reversed the previously open valves M and U are closed, and the previously closed valves M and U are opened, the right-hand flue Q is disconnected from the source of air supply and the left hand flue isconnected thereto.

-.With the apparatus described it is possible ports M of the supply pipes M and M to supply exactly the proper amount of air to the difierent regenerators G, and air or gas,

depending upon whether the oven is used as a coke oven or gas oven, to the regenerative chambers GA. 7

The'various outlet ports P, and the sole channels N should ordinarily be initially or relatively so proportioned that the flow into each .sole channel N from the regenerator chamber above it through the corresponding ports P is uniformly distributed among the latter. When each of the sole channels taper in cross section, as indicated in the drawings, so that the velocity of flow through the sole channel is the same at all points along the length of the latter the corresponding ports P should all be of the same size. The distribution of flow through the different sole channels N, and consequently the distribution of downward flow among the different flues B in each heating wall may be regulated by the setting of the various throttling dampers U.

The provisions described for accurately proportioning the supply of the air or air and gas to be preheated in the difierent repled with the adjustable slide chambers E,

and a proper "initial proportioning of'the various wastegas outlets and sole channels connected tothe diflerent regenerator chambers, make it possible to obtain the distribution of both the ascending and descending streams of burning gas in the combustion flue B and regenerators necessary to insure the desired uniform coking of the coal charged into the chambers A.

The provision of separate sole channels for the regenerative spaces connected to the different flues B not only prevents any possibility of a flow from one regenerator space V to another through the sole channels with a consequent disturbance of the distribution of upward flow through the fines but also permits a regulation of the distribution of downward flow by adjusting the throttle damper U.

While in accordance with the provisions of the statutes I have illustratedthe best form of my invention now known to me, it willbe apparent to those skilled in the art that many changes may be made in the form of the apparatus disclosed without departing from the spirit of myinvention, and that certain features of invention disclosed herein may sometimes be used with advantage without a corresponding use of other features.

1 Having now described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. In a regenerative coke oven having a coking chamber, a heating wall at the side of said chamber, two groups of heating flues in said heating wall, and a passage to which one end of each of the flues in both groups is connected, a set of regenerators to which the opposite ends of the flues in one group are connected, and another set of regenerators to which the opposite ends of the flues in the other group are connected, each regenerator beingconnected to a part only of the flues in the group to which the corresponding set of regenerators is connected, and supply connection to the various regenerators, the improvements consisting in invarious heating walls are connected, and another set of similarly located regenerators to which the lower ends of the remaining flues are connected, each regenerator being connectedto a part only of the fines in the group of each heating wall to which the corresponding set of .regenerators is c0nnected, and supply means for the various regenerators, the improvement which consists in individual waste gas sole channels for the different regenerators.

3. In a regenerative coke oven having parallel horizontal coking chambers, heating walls between said chambers, two groups of heating flues and an upper horizontal passage to which, the upper end of each ofthe fines in both groups is connected in each heating wall, a set of regenerators running transversely to, and beneath the chambers and heating walls to which the lower ends of the flues in one group of each of the various heating walls are connected, and another set of similarly located regenerators to which the lower ends of the remaining flues'r are connected, each regenerator being connected to a part only of the flues in the group of each heating wall to which the corresponding set of regenerators is connected, and supply means for the various regenerators, the improvement which consists in a separate waste gas outlet channel for each regenerator running along the latter and communicating therewith'at distributed points along the length of the regenerator.

4. In a regenerative coke oven having parallel horizontal coking chambers, heating walls between said chambers, two groups of heating fiues and an upper horizontal'passage to which the upper end of each or" the flues in both groups is connected in each heating wall, a set of regenerators running transversely to, and beneath the chambers and heating walls to which the lower ends of the, fines in one group of each of the various heating walls are connected, and another set of similarly locatedregenerators to which the lower ends ofthe' remaining flues are connected, each regenerator being connected to a part only of'the fiues in the group of each heating wall to whichthe corresponding set of regenerators is connected, and supply means for the various regenerators, the improvement which consists 111 a separate gas outlet channel for eachregenerator running along the under side of the latter, and valves controlhng the.

and heating walls to which the'lower ends of the'flues in one group of each of the vari ous heating walls are connected, and another set of similarly located regenerators to which the lower ends of the remaining fines are connected, each regenerator being connected to a part only of the fines in the group of each heating wall to which the corresponding set of regenerators is connected, and supply means for the various regenerators, the improvement which consists in separate waste gas outlet channels iEor the various regenerators runningparallel to the regenerators, and a common stack flue to which said channels are individually connected at the end of the oven. p CHARLES E. LUCKE. 

